I think our new seamless charts will be the best of both worlds. Seamless charts can suffer from 2 drawbacks:
1) You can loose border information - we're not gonna have that problem...in fact it will be easier to access than it currently is.
2) Sometimes, where different charts overlap, they can have different data. One chart may include some airspace text or airport details that the overlapping chart doesn't include. Most apps out there blend the maps into one image and so a bit of data can be lost. Our solution won't have this problem. We're keeping all the data to the edge of every map.
For these reasons we don't plan on having a "non-seamless" option. But I sure hope that everyone finds the new interface an improvement.
-Walter